Improvement in leathee-scoubim machines



1 i? f @with gieten getest @tiene .ALBERT W. EGBERTS, OF IIAR'IFGRD,QGONNECTIOUT, ASSIGNOR TO I). JEWELL AND SONS, OF THE SAME PLAGE.

Letters Patent No. 63,307, dated Varen 26, 186']` IMPROVEMENT IN LEATHER-SGOURING MACHINES.

TO ALL WI-IOM IT MAY CONCERN:

Be it known that I, ALBERT W. ROBERTS, oi' the city and county of Hartford, and State of Connecticut, haveinventedccrtain new and useful Improvement in Ileather-Seouring Machines; and to enable others skilled in the art to make and use the same, I will proceed to describe its construction and operation, referringl to the drawings, in which the same letters indicate like parts in each of the h gures.

The nature of this invention will be understood from the specification and drawings, the object of which is to systematically arrange the mechanism of a leather-scouring machine, whereby it is rendered more perfectly automatic in its operation, and more rapid in its action. In the accompanying drawings- Figure is a side elevation of the machine.

Figure 2 is an end elevation of the machine.

Figure 3 is a plan view of the table or bed upon which the leather is placed and held by atmospheric pressure to receive the action ofthe tools,

Figure 4 is a side elevation of the reciprocating head detached from the machine.

Figure 5 is a partial-section view of the head, showing more clearly the inside arrangement of its parts.

Figure 6 is a side and top view of au adjustable tool-holder, showing:r how the angle of the stone or toolholder is elevated or depressed upon its oscillating arm. The object of raising and lowering,l the arms, and altering the angle of the tool-holders, is to facilitate the operation of scouring, and to perform the work more l perfectly, because in'light leather it is important that the tools should be held at a more acute angle than what is required for heavy leather. l

`A is the framework ofthe machine, or the wall ot" a buildingi B are trusses or timbers secured in or upon said wall or framework, to which the hangers B and guide-ways B are secured. C is a reciprocating tool-stock,

secured closely and works freely upon the guide-ways B. D is a rocking and aetuatingshaft, to which one end of the connecting-rod D is secured, between the sides of said stock C. Said shaft D has a vibrating arm,` E,

secured to its outer end. F F are rock-shafts, which extend across and work in bearings formed in the sides of the tool-stock C, having arms'F secured to their outer ends. G G are link connecting-reds, one end of each Aof which is secured 'to the upper endA of the Varms F, the link ends of which werk upon a piu or screw, a, in the upper end of the arm E. H is a fulcru1n-sliaft, upon which the tool-arms II are arranged, the ends of which take bearing in the boxes H, which are fitted into vertical guide-ways formed in the sides and near the lower end of the tool-stock. These boxes I-I are elevated or depressed and firmly held in position by the action of the screws c, or their equivalents. I are tool-holders. One plan of construct-ing said holders is to form the` holder on the outer end of the arm H. The other form of constructing' said tool-holder is to make it of a separate piece of metal, and securing it to the lower or outer end of the arms II by means of a screw er bolt, d. The upperv ends of these holders are provided with a slitted segment, the radius of which has its centre in the screw or bolt d, the object of which is to regulate the angle of the tool J. .I is the tool, secured in the clamp J by means of `the holding-screwe. VSaid tool is adjusted in its proper position in said clamps by 'means of the screws c. K is a spring, one end of which is secured to the arm II by a screw, or otherwise, the outer end of which takes its bearing upon the upper side of the clamp or tool-holder of the opposite arm, the pressure of which spring is adjusted by the action ofthe screw e in the arm Il. O are lifting-rods, one end of which is hinged to the toolclnmps or holders. The upper ends of said rods pass through/oriiices-i'ormed in the outer ends of the lifting-arms P, secured to or on the rock-shafts F F. These rocleshafts are provided witlnarins I, which extend inward nearly in an opposite line or direction from the arms I), for the purpose of holding the tools up from the work while the head is in motion by the' sliding motion or action ,of the dogs P, or their equivalents. The rods O .are provided with adjustable nuts Q, the oliice of which is to regulate the time of commencing und. stopping the alternate action ofthe tools. The outer end ofthe connecting-rod D is secured to a crank by a piu on the end of the counter-shaft R, and from which motion is imparted to the machine by the pulley R.' S is a table9 Awhich is constructed iu two parts. -The lower part S is provided with ways or guides enit-s upper surface, upon which the upper bed'or table S is fitted 'to move closely and freely thereon, and in a' parallel line therewith. T is a rotating plate, fitted closely and rotates freely in the under side of the bed S. T is a sliding plate,irmly secured to the face of the rotating plate T. This plate T' is fitted intol a horizontal lg'uide-way, T", which is firmly supported by a post, U, and in a position at right angles with the guide-ways B", so that' this plate T' can only move in a rightfangle line with the guide-ways B", while the bed S' is free to oscillate thereon. The guide ways V are supported in a horizontal position, and on a level with the guide-ways T". These guide-ways may be formed in one whole true circle, or of two or more straight pieces, or in a circular or curved form, as shown' in fig. 3. It will be seen that by this arrangement or construction of the-table that, when the leather is placed thereon, the workman can quickly and easily bring it into any desirable position to the action of the tools. I have. thus endeavored to show the construction and the result produced by the peculiar adaptation of the several parts one with the other, so as to-enable others skilled to malte and use the same therefrom.

What I claim, therefore, and desire to secure by Letters Patent, is

1. The rotating plate T, sliding plate T', guide-way T", or their equivalents, in combination with the table S', to produce a transverse movement of the table with the guide-ways B", substantially as described.

2. In combina-tion with thevaboveI claim the table S, to produce a universal horizontal movement of said table, substantially as described.

I 3. I claim the employment of an oscillating adjustable tool-'holder with the arms H', for altering the angle of the tool, substantially as described.

4. I claim the altering` of the angleof the tool, with or without the use of the tool-arms H', by means of Ithe adjustable shaft II, or its equivalent, substantially as described.

5. I claim the employment of the springs K, secured to the arms II', and bearing upon the tool-holders I, extending in an opposite direction from that to which the springs are secured, for the purpose of imparting pressure from one to the other, substantially as shown and described.

6. I claim the alternate action of the springs K, imparted 'from one to the other by raising either one of the arms from the table, substantially as described.

7. I claim the arms G G, in combination with the arms F' F', arm E, rock-shafts F F, and their connections, for lifting the tools from the table, substantially as shown and described.

8. I claim arranging the arms H' upon au independent shaft H, to more perfectly utilize their action.

9. I claim arranging the shaft II in adjustable or sliding boxes H", whereby it can be elevated or depressed by screws c e, or their equivalents, for the purpose as shown and described.

IO. I claim the employment of slide-dogs P", or their equivalents, for holding up the tools from the work 'while the tool-stool; C is in motion.

11. I claim the employment ofthe screw c" with the arm L, or their equivalents, for increasing the tension of the spring K, substantially as described. v

A. W. ROBERTS.

Witn esscs:

GEORGE "Bahrain, JEREMY W. Buss. 

